<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>用html+css制作一个网页</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        li {
            list-style: none;
        }

        .box {
            height: 320px;
            width: 320px;
            margin: 0px auto;
            border: 1px solid #000000;

        }

        .box ul {
            float: left;
            margin: 10px;
        }

        .box ul li {
            float: left;
            height: 90px;
            width: 90px;
            margin: 5px;
            background-color: orange;
            border-radius: 10px;
        }

        ;
    </style>

</head>

<body>
    <div class="box">
        <ul>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
        </ul>
    </div>
</body>

</html>